Plate Tectonics
Across
- 3. Oceanic crust is destroyed
- 5. Earths crust and upper mantle are broken into sections
- 7. Less dense than oceanic crust
- 9. Plates that slide past each other
- 10. Thin layer in comparison to other three layers
- 11. Theory that combined continental drift and seafloor spreading
- 12. A movement of the ground that occurs when rocks inside the Earth break suddenly
- 13. Continents have slowly moved to their current locations
- 15. Theory that hot less dense below Earths crust rises toward the surface at the mid ocean ridges
- 17. The crust and upper mantle are combined
- 18. Plates that come together or collide
- 19. When rock breaks and moves along surfaces
Down
- 1. Plastic like layer below the lithosphere
- 2. Largest layer of the Earth
- 4. They occur when hot magma, solids,and gas erupt onto Earths surface
- 6. Plates that move or pull apart from each other
- 7. Cycle of heating, rising, cooling, and sinking
- 8. Portion of the Earths crust that lies beneath ocean waters
- 14. All land
- 16. Rock, basalt under the ocean